As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HAD MASTER WARNING AND MASTER CAUTION ANNC FLASHERS ON TAKEOFF, ABORTED. MASTER WARNING FLASHERS SEEMS TO COME ON ANYTIME MASTER CAUTION FLASHERS COMES ON. MAINTENANCE R & R PRINTED CIRCUIT BOARD. OPERATIONAL CHECKS WERE GOOD IAW MM 31-61-10.